/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
import groovy.transform.*

class SomeContainer {
    public Object getAt(int i) {
        return "123";
    }

    public void putAt(int i, Object obj) {
    }
}

def safe() {
    List list = null;
    assert null == list?[1];
    list?[1] = 'a';
    assert null == list?[1];

    Map map = null;
    assert null == map?[1];
    map?[1] = 'a';
    assert null == map?[1];

    SomeContainer sc = null;
    assert null == sc?[1];
    sc?[1] = 'a';
    assert null == sc?[1];
}
safe();

@CompileStatic
def csSafe() {
    List list = null;
    assert null == list?[1];
    list?[1] = 'a';
    assert null == list?[1];

    Map map = null;
    assert null == map?[1];
    map?[1] = 'a';
    assert null == map?[1];

    SomeContainer sc = null;
    assert null == sc?[1];
    sc?[1] = 'a';
    assert null == sc?[1];
}
csSafe();
